Blanking method for special-shaped flange of variable-frequency conveying flame-proof motor

Abstract

The invention discloses a blanking method for a special-shaped flange of a variable-frequency conveying flame-proof motor, which comprises the steps that an original flange drawing is designed, wherein the original flange drawing comprises an inner circle, an outer circle and a flange appearance lug, and allowance design is conducted on the diameter size of the inner circle and the diameter size of the flange appearance lug; machining amount is not left on the outer circle, and during blanking, process tie bars are additionally arranged on a center line; and after the blank is cooled, the process tie bars are manually and pneumatically cut off, all roots of the tie bars can be machined to the drawing size when the inner circle of the flange is machined, and the flange blanking procedure is completed. The purpose of special flange blanking is achieved, the purposes of saving time and materials are achieved while the size requirement of a design drawing is completely guaranteed, the cost is greatly saved on the premise that the size of a movable part is guaranteed, after blanking is conducted, the process tie bars are manually and pneumatically cut off after the movable part is thoroughly cooled, the roots of the process tie bars can be machined to the drawing size when the inner circle of the flange is machined, so that the drawing size is completely guaranteed, and the performance is met.

Description

technical field [0001] The invention relates to the technical field of production and processing of flameproof motors, in particular to a method for cutting flanges of special shapes for frequency conversion conveying flameproof motors. Background technique [0002] In the process of producing coal mine explosion-proof motors, in order to meet the needs of different motor markets, it is necessary to continuously develop new explosion-proof motors. The frequency conversion transmission motor is a new type of explosion-proof motor. This type of motor requires high power and large housing, and the requirements for the relevant dimensions of the motor are very strict. As far as the existing production capacity is concerned, in order to ensure the quality of the motor, each production link of each component is very important, and the special shape of this type of motor Due to its large size and thick thickness, it has caused great difficulties in the production of motors from bla...

AI Technical Summary

Problems solved by technology

This type of motor requires high power and large housing, and the requirements for the relevant dimensions of the motor are very strict. As far as the existing production capacity is concerned, in order to ensure the quality of the motor, each production link of each component is very important, and the special shape of this type of motor The flange, because of its large size and thick thickness, has caused great difficulties in the production of motors from blanking to processing.

[0003] In this type of frequency conversion conveying flameproof motor base, the diameter of the blanking plate due to the special shape of the flange is generally about 1000mm, and the thickness is generally between 60mm and 75mm. As far as the current gas cutting blanking and processing methods are concerned, it is necessary to ensure that the flange The mounting holes on the shape straps are closely matched with the mounting holes of the motor end cover, and it is necessary to ensure that the flanges are effectively matched with the user's host shape to ensure the design concept of the motor, and the blanking method similar to the flange is quite difficult.

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